Re: [PATCH] i2c: avoid sleep in IRQ context

Adamski, Krzysztof (Nokia - PL/Wroclaw) 於 2019年8月7日週三 下午2:51寫道： > > On Mon, Aug 05, 2019 at 08:31:34PM +0800, Fuqian Huang wrote: > >i2c_pxa_handler -> i2c_pxa_irq_txempty -> > >i2c_pxa_reset -> i2c_pxa_set_slave -> i2c_pxa_wait_slave > > > >As i2c_pxa_handler is an interrupt handler, it will fina

[PATCH] i2c: avoid sleep in IRQ context

i2c_pxa_handler -> i2c_pxa_irq_txempty -> i2c_pxa_reset -> i2c_pxa_set_slave -> i2c_pxa_wait_slave As i2c_pxa_handler is an interrupt handler, it will finally calls i2c_pxa_wait_slave which calls msleep. Add in_interrupt check before msleep to avoid sleep in IRQ context. Signed-off-by: Fuqian Hu